Photo by Hollywood To You/Star Max/GC ImagesJustin Bieber apparently followed tradition when proposing to Hailey Baldwin.

A source tells Entertainment Tonight the singer asked Hailey’s dad, Stephen Baldwin, for his blessing before popping the question.

“Justin wanted to respect tradition, so a couple weeks ago, while him and Hailey were visiting New York, Justin set aside some time to talk with Stephen,” the source says. “Justin and Stephen have always had a close relationship, and Justin wanted to show his future father-in-law how serious he is about his future with Hailey.”

It was Stephen who introduced the couple, way back in 2009 when young Hailey was just a fan. He also took Hailey to the premiere of Justin’s film Never Say Never in 2011.

“Stephen is a minister, so Justin knew it was important to Stephen that the two have a conversation before he proposed to Hailey,” the source tells ET. “Justin and Stephen talked about relationships, sacrifice and religion, and ultimately Stephen gave Justin his blessing to propose to Hailey. Stephen is very happy for Justin and Hailey.”

Justin confirmed the engagement with a lengthy message on Instagram Monday, writing that he is “so committed” to spending his life with Hailey.

Hailey also tweeted, “Not sure what I did in life to deserve such happiness but I am so utterly grateful to God for giving me such an incredible person to share my life with! No words could ever express my gratitude.”